What is IPv6

IPv6 (Internet Protocol Version 6) is also called IPng (Internet Protocol next generation) and it is the newest version of the Internet Protocol (IP) reviewed in the IETF standards committees to replace the current version of IPv4 (Internet Protocol Version 4).
The official name of IPng is IPv6, where IP stands for Internet Protocol and v6 stands for version 6.
Internet Protocol Version 6 (IPv6) is the successor to Internet Protocol Version 4 (IPv4). IPv6 was designed as an evolutionary upgrade to the Internet Protocol and will, in fact, coexist with the older IPv4 for some time. IPv6 is designed to allow the Internet to grow steadily, both in terms of the number of hosts connected and the total amount of data traffic transmitted.


 IPv6 expands upon the addressing and routing capabilities of IPv4 in a number of ways including:

• In IPv6 the IP address size is increased from 32 bits to 128 bits
• IPv6 supports a greater number of addressable nodes
• IPv6 provides more levels of addressing hierarchy
• IPv6 offers simpler auto-configuration of addresses
• Ipv6 also supports simplified header format 

Difference between IPv4 vs IPv6

IPv4	IPv6
It’s 32 bit	It’s 128 bit
4 octet’s	8 group
Separate (.)	Separate (:)
Write decimal  (0-9)	Write hexadecimal (0-9) (A-F)
Limited IP RANGE	UNLIMITED IP RANGE
BROADCAST	NO BROADCAST
CLASS	NO CLASS
SUBNETMASK	NO SUBNETMASK USE (CIDR,/128)

 
IPv6 Basic Configuration 

RIPng Ipv6 Lab 

• ipv6 feature

1 128 bit address

2 8 block (group)

3 Each block 16 bit

4 Write format hexadecimal (0-9,a-f)

5 No more broadcast

6 No class in ipv6

7 No NATtingin ipv6

• Ipv6 packets

1 uni-cast

2 multicast

3 any cast

• IPv6 address

 

• IPv6 we can assign by three types

1 Link local :- it is automatically assign of IPv6 enabled link(interface)

>It is local to the subnet
>It is non routable
>Always start FE80
>No ARP

2 Static :- Using static command on interface port manual

3 IPv6 assign with DHCP
>Stat full auto config
>Stateless auto config